search for: devfn

On Wed, 28 Feb 2018, Jan Kiszka wrote: > From: Jan Kiszka <jan.kiszka at siemens.com> > > Per PCIe r4.0, sec 7.5.1.1.9, multi-function devices are required to > have a function 0. Therefore, Linux scans for devices at function 0 > (devfn 0/8/16/...) and only scans for other functions if function 0 > has its Multi-Function Device bit set or ARI or SR-IOV indicate > there are more functions. > > The Jailhouse hypervisor may pass individual functions of a > multi-function device to a guest without passing function 0, w...

...:PCI: bdf = 0:2:0 (XEN) intel-iommu.c:1260:d0 domain_context_unmap_one_1:bdf = 0:2:0 (XEN) intel-iommu.c:741: iommu_page_fault: iommu->reg = fff77000 (XEN) intel-iommu.c:724: iommu_page_fault:DMA Write: DEVICE 0:2.0 addr 7e8000002 (XEN) print_vtd_entries: domain_id = 0 bdf = 0:2:0 devfn = 10, gmfn = 7e800 (XEN) ---- print_vtd_entries 0 ---- (XEN) d->pgd = ffbce000 virt_to_maddr(hd->pgd) = bce000 (XEN) root_entry = ffbcb000 (XEN) root_entry[0] = bc5001 (XEN) maddr_to_virt(root_entry[0]) = ffbc5001 (XEN) ctxt_entry[10].lo == 0 (XEN) i...

From: Jan Kiszka <jan.kiszka at siemens.com> Per PCIe r4.0, sec 7.5.1.1.9, multi-function devices are required to have a function 0. Therefore, Linux scans for devices at function 0 (devfn 0/8/16/...) and only scans for other functions if function 0 has its Multi-Function Device bit set or ARI or SR-IOV indicate there are more functions. The Jailhouse hypervisor may pass individual functions of a multi-function device to a guest without passing function 0, which means a Linux guest...

From: Jan Kiszka <jan.kiszka at siemens.com> Per PCIe r4.0, sec 7.5.1.1.9, multi-function devices are required to have a function 0. Therefore, Linux scans for devices at function 0 (devfn 0/8/16/...) and only scans for other functions if function 0 has its Multi-Function Device bit set or ARI or SR-IOV indicate there are more functions. The Jailhouse hypervisor may pass individual functions of a multi-function device to a guest without passing function 0, which means a Linux guest...

From: Jan Kiszka <jan.kiszka at siemens.com> Per PCIe r4.0, sec 7.5.1.1.9, multi-function devices are required to have a function 0. Therefore, Linux scans for devices at function 0 (devfn 0/8/16/...) and only scans for other functions if function 0 has its Multi-Function Device bit set or ARI or SR-IOV indicate there are more functions. The Jailhouse hypervisor may pass individual functions of a multi-function device to a guest without passing function 0, which means a Linux guest...

...mem_end; diff --git a/tools/firmware/hvmloader/pci.c b/tools/firmware/hvmloader/pci.c index fd56e50..0500db5 100644 --- a/tools/firmware/hvmloader/pci.c +++ b/tools/firmware/hvmloader/pci.c @@ -36,19 +36,25 @@ unsigned long igd_opregion_pgbase = 0; void pci_setup(void) { - uint32_t base, devfn, bar_reg, bar_data, bar_sz, cmd, mmio_total = 0; + uint8_t is_64bar, using_64bar, bar64_relocate = 0; + uint32_t devfn, bar_reg, cmd, bar_data, bar_data_upper; + uint64_t base, bar_sz, bar_sz_upper, mmio_total = 0; uint32_t vga_devfn = 256; uint16_t class, vendor_id, device_id;...

From: Jan Kiszka <jan.kiszka at siemens.com> Per PCIe r4.0, sec 7.5.1.1.9, multi-function devices are required to have a function 0. Therefore, Linux scans for devices at function 0 (devfn 0/8/16/...) and only scans for other functions if function 0 has its Multi-Function Device bit set or ARI or SR-IOV indicate there are more functions. The Jailhouse hypervisor may pass individual functions of a multi-function device to a guest without passing function 0, which means a Linux guest...

...; #include <asm/pci_x86.h> +#include <asm/jailhouse_para.h> /* * Discover remaining PCI buses in case there are peer host bridges. @@ -34,13 +35,14 @@ int __init pci_legacy_init(void) void pcibios_scan_specific_bus(int busn) { + int stride = jailhouse_paravirt() ? 1 : 8; int devfn; u32 l; if (pci_find_bus(0, busn)) return; - for (devfn = 0; devfn < 256; devfn += 8) { + for (devfn = 0; devfn < 256; devfn += stride) { if (!raw_pci_read(0, busn, devfn, PCI_VENDOR_ID, 2, &l) && l != 0x0000 && l != 0xffff) { DBG("Found devic...

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

First, maintainer''s addresses (Ryan Wilson <hap9@epoch.ncsc.mil>, Chris Bookholt <hap10@epoch.ncsc.mil>) are wrong (users unknown to remote mailsystem), so posting to you: PCI bus format strings are wrong. "%04x:%02x:%02x.%d" should be used instead of "%04x:%02x:%02x.%1x" (in many places of linux+v3.2.1/drivers/xen/xen-pciback/pci_stub.c) --

...2985.074862] pcieport 0000:00:07.0: [20] Unsupported Request (First) [ 2985.074869] pcieport 0000:00:07.0: TLP Header: 6000201d 0400003f 21f91a41 aecadb80 [ 2985.074886] pcieport 0000:00:07.0: broadcast error_detected message [ 2985.074893] pciback 0000:04:00.0: pciback_error_detected(bus:4,devfn:0) [ 2985.074902] pciback 0000:04:00.0: pciback: aer_op 6 dom 0 bus 0 devfn 0 [ 2985.145525] pciback 0000:04:00.1: pciback_error_detected(bus:4,devfn:1) [ 2985.145533] pciback 0000:04:00.1: pciback: aer_op 6 dom 0 bus 0 devfn 1 [ 2985.145777] pcieport 0000:00:07.0: broadcast slot_reset message [ 29...

This patch set mainly allows the user to build a seabios or rombios only version of hvmloader. In addition, when building a seabios only hvmloader, Option ROMs like vgabios and etherboot are no longer required, and therefore can be disabled from the build. Dependency on the bcc compiler can also be avoided the same way. v2: Separate patches for separate issues Introduced config option to

...ops virtfn_slot_ops = { + .owner = THIS_MODULE, + .enable_slot = enable_virtfn, + .disable_slot = disable_virtfn, + .set_param = set_virtfn_param, + .get_param = get_virtfn_param +}; + +static DEFINE_MUTEX(iov_lock); + + +static inline void get_addr(struct pci_dev *dev, int id, u8 *busnr, u8 *devfn) +{ + u16 addr; + + addr = (dev->bus->number << 8) + dev->devfn + + dev->iov->offset + dev->iov->stride * id; + *busnr = addr >> 8; + *devfn = addr & 0xff; +} + +static inline struct pci_bus *find_bus(struct pci_dev *dev, int busnr) +{ + struct pci_bus *bu...

...ops virtfn_slot_ops = { + .owner = THIS_MODULE, + .enable_slot = enable_virtfn, + .disable_slot = disable_virtfn, + .set_param = set_virtfn_param, + .get_param = get_virtfn_param +}; + +static DEFINE_MUTEX(iov_lock); + + +static inline void get_addr(struct pci_dev *dev, int id, u8 *busnr, u8 *devfn) +{ + u16 addr; + + addr = (dev->bus->number << 8) + dev->devfn + + dev->iov->offset + dev->iov->stride * id; + *busnr = addr >> 8; + *devfn = addr & 0xff; +} + +static inline struct pci_bus *find_bus(struct pci_dev *dev, int busnr) +{ + struct pci_bus *bu...

...ops virtfn_slot_ops = { + .owner = THIS_MODULE, + .enable_slot = enable_virtfn, + .disable_slot = disable_virtfn, + .set_param = set_virtfn_param, + .get_param = get_virtfn_param +}; + +static DEFINE_MUTEX(iov_lock); + + +static inline void get_addr(struct pci_dev *dev, int id, u8 *busnr, u8 *devfn) +{ + u16 addr; + + addr = (dev->bus->number << 8) + dev->devfn + + dev->iov->offset + dev->iov->stride * id; + *busnr = addr >> 8; + *devfn = addr & 0xff; +} + +static inline struct pci_bus *find_bus(struct pci_dev *dev, int busnr) +{ + struct pci_bus *bu...

...uot;pci.h" + +#define VF_PARAM_LEN 128 + +#define notify_phyfn(pf, event, arg) ({ \ + pf->iov->notify ? pf->iov->notify(pf, event, arg) : 0; \ +}) + +static int iov_set_nr_virtfn(struct pci_dev *, int); + + +static inline void vfid_to_bdf(struct pci_dev *pf, int vfid, u8 *bus, u8 *devfn) +{ + u16 bdf; + + bdf = (pf->bus->number << 8) + pf->devfn + + pf->iov->offset + pf->iov->stride * vfid; + *bus = bdf >> 8; + *devfn = bdf & 0xff; +} + +static inline int bdf_to_vfid(struct pci_dev *pf, u8 bus, u8 devfn) +{ + u16 bdf; + int vfid; + + bdf...

...uot;pci.h" + +#define VF_PARAM_LEN 128 + +#define notify_phyfn(pf, event, arg) ({ \ + pf->iov->notify ? pf->iov->notify(pf, event, arg) : 0; \ +}) + +static int iov_set_nr_virtfn(struct pci_dev *, int); + + +static inline void vfid_to_bdf(struct pci_dev *pf, int vfid, u8 *bus, u8 *devfn) +{ + u16 bdf; + + bdf = (pf->bus->number << 8) + pf->devfn + + pf->iov->offset + pf->iov->stride * vfid; + *bus = bdf >> 8; + *devfn = bdf & 0xff; +} + +static inline int bdf_to_vfid(struct pci_dev *pf, u8 bus, u8 devfn) +{ + u16 bdf; + int vfid; + + bdf...

...uot;pci.h" + +#define VF_PARAM_LEN 128 + +#define notify_phyfn(pf, event, arg) ({ \ + pf->iov->notify ? pf->iov->notify(pf, event, arg) : 0; \ +}) + +static int iov_set_nr_virtfn(struct pci_dev *, int); + + +static inline void vfid_to_bdf(struct pci_dev *pf, int vfid, u8 *bus, u8 *devfn) +{ + u16 bdf; + + bdf = (pf->bus->number << 8) + pf->devfn + + pf->iov->offset + pf->iov->stride * vfid; + *bus = bdf >> 8; + *devfn = bdf & 0xff; +} + +static inline int bdf_to_vfid(struct pci_dev *pf, u8 bus, u8 devfn) +{ + u16 bdf; + int vfid; + + bdf...